确定文件夹或文件密钥 - Boto [英] Determine if folder or file key - Boto

问题描述

使用 boto 和 Python，我试图区分密钥是否返回文件文件夹(我知道 S3 对两者的处理方式完全相同，因为我没有直接处理文件系统).

Using boto and Python I am trying to differentiate whether a key is returning a folder of file (I am aware that S3 treats both exactly the same as I am not dealing with a filesystem directly).

我现在有两把钥匙

<Key: my-folder,output/2019/01/28/>
<Key: my-folder,output/2019/01/28/part_1111>

第一个是文件夹"，第二个是文件".我想要做的是确定密钥是否是文件"，但不确定如何确定这一点，很明显，密钥不是以 / 结尾，但我将如何在 Python 中确定它.

The first being a "Folder" and the second being a "File". What I would like to do is determine whether the key is a "File" but unsure on how to determine this, the obvious is the key not ending in a / but how would I determine that in Python.

如果我正在迭代 list()，我可以将密钥转换为字符串或访问密钥属性吗?

If I was iterating over a list() can I turn the key into a string or access the keys attributes?

for obj in srcBucket.list():
   # Get the Key object of the given key, in the bucket
   k = Key(srcBucket, obj.key)
   print(k)
   <Key: my-folder,output/2019/01/28/>
   <Key: my-folder,output/2019/01/28/part_1111>

推荐答案

S3.Object 和 S3.ObjectSummary 将具有以下属性:

S3.Object and S3.ObjectSummary will have the following property:

'ContentType': '应用程序/x-目录'

'ContentType': 'application/x-directory'

如果键是目录.

for s3_obj_summary in bucket.objects.all():
  if s3_obj_summary.get()['ContentType'] == 'application/x-directory':
    print(str(s3_obj_summary))

https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/s3.html#S3.ObjectSummary.get

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